Generac Guardian 8kW Automatic Home Standby Generator | 6245 0 5out of 5 2 2 user ratings.
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Generac Guardian 8kW Automatic Home Standby Generator | 6245

  • True Power Electrical Technology
  • Two Line LCD Multi-Lingual Digital Evolution Controller
  • Transfer Switch Options Available
  • Electronic Governor
  • External Main Circuit Breaker, System Status & Maintenance Interval LED Indicators
  • Self-test runs for only twelve minutes. Choose your schedule - weekly, bi-weekly or monthly
  • Sound Attenuated Enclosure
  • Flexible Fuel Line Connector
  • Composite Mounting Pad
  • Natural Gas or LP Gas Operation
  • 5 Year Limited Warranty
  • UL 2200 Listed
  • Our Phone Lines Are Open!

    Call Us Toll-Free: 855-453-4494

    Generac Power Systems 6245 Details and Specifications

    The Generac Model 6245 generator provides standby power in an emergency. When Installed with a Generac automatic transfer switch, it keeps your home supplied with power during a power outage, even if you are not home. The 6245 sold by Norwall Power Systems uses the state of the art Evolution Controller to handle all generator functions and ensure trouble free operation to keep the generator ready for use at all times. The Generac 8kW Guardian Generator comes with a 5 year limited consumer warranty.

    Fuel choices

    Standby Generators from Generac operate on either LP gas or Natural Gas and are convertible in the field to accommodate either installation, without the need for any tools. The home's current fuel supply―either natural gas or LP gas―is usually the deciding factor when selecting the type of generator fuel. LP gas installations provide 8000 watts of capacity while natural gas provides 7000 watts. Fuel consumption at half load is about .87 gallons per hour for LP gas, and about 72 cubic feet per hour for natural gas. Fuel consumption is directly related to the electrical load and varies continuously during normal operation.  Required fuel pressure to generator fuel inlet at all load ranges 3.5" - 7" water column for natural gas or 10" - 12" water column for LP gas.


    The 410 cc air-cooled, overhead-cam industrial engine was designed and manufactured specifically for use in Generac's standby generators. It runs at 3600 RPM and is capable of producing up to 14.8 horsepower. Engine features include "Spiny-Lok" cast iron cylinder walls for extra rigidity and durability, a fully pressurized oil lubrication system, electronic ignition, and a 2 year / 200 hour oil change schedule for extended operation before maintenance is required.

    Evolution Controls

    The Evolution Controller by Generac operates the standby generator. When an outage occurs, it starts the generator and instructs the transfer switch to move the house onto generator power. During operation, it constantly monitors the load and engine speed to ensure consistent, utility grade power suitable for the most sensitive of electronics. At the same time, it monitors various sensors to ensure trouble-free operation.

    Other features of the Evolution Controller include a programmable exercise period which keeps the generator lubricated and extends the life of seals and bearings. It includes a smart battery charger to keep the battery charged at its optimum level, a sophisticated fault detection system, and alerts the homeowner when maintenance is required. A dealer programmable start delay allows a 2 to 1500 second startup delay to prevent starting during momentary outages and voltage sags.

    Mobile Link Compatible

    Take advantage of Generac’s Mobile Link cellular remote monitoring system and check on your generator’s status using your computer, tablet or smartphone, even when you are away. Sold Separately.

    Generator Unit

    The alternator generates electricity using a revolving magnetic field design which provides better voltage regulation and higher surge capacity than a stationary field. Combined with skewed stators on a stationary armature, the generator output is clean and steady even when the load is constantly changing. The high surge capacity allows the generator to start motors, even when other appliances have the generator under load.

    Easy Installation

    When combined with a pre-wired transfer switch, re-engineered connection points, and composite mounting pad that eliminates the need for a poured concrete base (unless specified by local codes), the Guardian Series 8kW generator is easy to install.

    Appearance and Noise

    The 6245 is 48 inches wide, 25 inches deep, and 29 inches high. With an eye pleasing design, an enclosure that resists corrosion, and a 62db noise level that is quieter than most central air conditioning units, this generator will fit well into any neighborhood. The unit cover opens to allow easy access for maintenance and locks with a key to prevent tampering.

    USA Engineered & Built

    Generac $50/$50 Referral Rebate, Click Here 

    Product Warranty

    Manufactures Warranty: 5 Year Limited

    Product Specifications

    Model Number 6245
    Manufacturer Generac Power Systems
    Made In USA Yes
    Rated Watts 8kW LP/7kW NG
    Rated Amps 33.3 LP/29.2 NG
    Voltage 120/240V Single Phase
    Ac Ton Rating 3 Ton
    Enclosure Steel
    Ul Listed Yes
    Decibel Rating 7m 62 db(A)
    Starting System Automatic Start
    Low Oil Alert Yes
    Mainline Breaker 35 Amps
    Hour Meter Yes
    Battery Reqments Group 26R, 12 Volts, 525 CCA
    Mounting Pad Composite Base Attached
    Weight 360 lbs
    Dimensions 48L x 25W x 29H
    Engine Brand Generac OHVI
    Engine Size 410 cc
    Engine Rpm 3600
    Cast Iron Sleeve Yes
    Cooling System Air Cooled
    Alternator Type Brushed
    Frequency 60 Hz
    Auto Voltage Regulation Yes
    Type Natural Gas (NG) / Propane (LP)
    NG Power Capacity 7kW
    LP Power Capacity 8kW
    NG Consumption Full Load 121 cu.ft/hr
    NG Consumption Half Load 78 cu.ft/hr
    LP Consumption Full Load 1.42 gal/hr
    LP Consumption Half Load .87 gal/hr
    Transfer Switch
    Model Sold Separately
    Warranty Information
    Consumer Warranty 5 Year Limited
    Type Standby Generator
    Series Name Guardian Series
    Shipping Information
    Ship Shipping Dimensions 44H X 51W X 26D
    Ship Shipping Weight 437 lbs
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    Model # 6245
    MSRP: $2,239.00
    Every Day Price: $2,187.00
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